Squares whose arithmetic derivative (A003415) is a cube.

Terms

a(0) =0a(1) =1a(2) =11664a(3) =20736a(4) =2313441a(5) =2985984a(6) =9150625a(7) =28005264a(8) =236421376a(9) =655360000a(10) =1871773696a(11) =3340840000a(12) =4294967296a(13) =10435031104a(14) =10485760000a(15) =11716114081a(16) =33556377856a(17) =50054665441a(18) =80706559921a(19) =156531800881a(20) =203928109056a(21) =258439040161a(22) =282429536481a(23) =414998793616